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- // -*- c++ -*-
- #ifndef _GLIBMM_PROPERTY_H
- #define _GLIBMM_PROPERTY_H
- /* $Id: property.h,v 1.5 2005/01/21 23:48:10 murrayc Exp $ */
-
- /* Copyright 2002 The gtkmm Development Team
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
- #include <glibmm/propertyproxy.h>
- #include <glibmm/value.h>
-
-
- namespace Glib
- {
-
- #ifndef DOXYGEN_SHOULD_SKIP_THIS
-
- #ifdef GLIBMM_CXX_CAN_USE_NAMESPACES_INSIDE_EXTERNC
- //For the AIX xlC compiler, I can not find a way to do this without putting the functions in the global namespace. murrayc
- extern "C"
- {
- #endif //GLIBMM_CXX_CAN_USE_NAMESPACES_INSIDE_EXTERNC
-
- void custom_get_property_callback(GObject* object, unsigned int property_id,
- GValue* value, GParamSpec* param_spec);
-
- void custom_set_property_callback(GObject* object, unsigned int property_id,
- const GValue* value, GParamSpec* param_spec);
-
- #ifdef GLIBMM_CXX_CAN_USE_NAMESPACES_INSIDE_EXTERNC
- } //extern "C"
- #endif //GLIBMM_CXX_CAN_USE_NAMESPACES_INSIDE_EXTERNC
-
- #endif /* DOXYGEN_SHOULD_SKIP_THIS */
-
-
- class PropertyBase
- {
- public:
- Glib::ustring get_name() const;
- void notify();
-
- protected:
- Glib::Object* object_;
- Glib::ValueBase value_;
- GParamSpec* param_spec_;
-
- PropertyBase(Glib::Object& object, GType value_type);
- ~PropertyBase();
-
- bool lookup_property(const Glib::ustring& name);
- void install_property(GParamSpec* param_spec);
-
- const char* get_name_internal() const;
-
- private:
- // noncopyable
- PropertyBase(const PropertyBase&);
- PropertyBase& operator=(const PropertyBase&);
-
- #ifndef DOXYGEN_SHOULD_SKIP_THIS
-
- friend void Glib::custom_get_property_callback(GObject* object, unsigned int property_id,
- GValue* value, GParamSpec* param_spec);
-
- friend void Glib::custom_set_property_callback(GObject* object, unsigned int property_id,
- const GValue* value, GParamSpec* param_spec);
-
- #endif /* DOXYGEN_SHOULD_SKIP_THIS */
- };
-
-
- template <class T>
- class Property : public PropertyBase
- {
- public:
- typedef T PropertyType;
- typedef Glib::Value<T> ValueType;
-
- Property(Glib::Object& object, const Glib::ustring& name);
- Property(Glib::Object& object, const Glib::ustring& name, const PropertyType& default_value);
-
- inline void set_value(const PropertyType& data);
- inline PropertyType get_value() const;
-
- inline Property<T>& operator=(const PropertyType& data);
- inline operator PropertyType() const;
-
- inline Glib::PropertyProxy<T> get_proxy();
- };
-
-
- #ifndef DOXYGEN_SHOULD_SKIP_THIS
-
- /**** Glib::Property<T> ****************************************************/
-
- template <class T>
- Property<T>::Property(Glib::Object& object, const Glib::ustring& name)
- :
- PropertyBase(object, ValueType::value_type())
- {
- if(!lookup_property(name))
- install_property(static_cast<ValueType&>(value_).create_param_spec(name));
- }
-
- template <class T>
- Property<T>::Property(Glib::Object& object, const Glib::ustring& name,
- const typename Property<T>::PropertyType& default_value)
- :
- PropertyBase(object, ValueType::value_type())
- {
- static_cast<ValueType&>(value_).set(default_value);
-
- if(!lookup_property(name))
- install_property(static_cast<ValueType&>(value_).create_param_spec(name));
- }
-
- template <class T> inline
- void Property<T>::set_value(const typename Property<T>::PropertyType& data)
- {
- static_cast<ValueType&>(value_).set(data);
- this->notify();
- }
-
- template <class T> inline
- typename Property<T>::PropertyType Property<T>::get_value() const
- {
- return static_cast<const ValueType&>(value_).get();
- }
-
- template <class T> inline
- Property<T>& Property<T>::operator=(const typename Property<T>::PropertyType& data)
- {
- static_cast<ValueType&>(value_).set(data);
- this->notify();
- return *this;
- }
-
- template <class T> inline
- Property<T>::operator T() const
- {
- return static_cast<const ValueType&>(value_).get();
- }
-
- template <class T> inline
- Glib::PropertyProxy<T> Property<T>::get_proxy()
- {
- return Glib::PropertyProxy<T>(object_, get_name_internal());
- }
-
- #endif /* DOXYGEN_SHOULD_SKIP_THIS */
-
- } // namespace Glib
-
-
- #endif /* _GLIBMM_PROPERTY_H */
-
-